Thank you very much!
(What does numerically mean??)
I'm in my first university year just to let you know - it's possible that I perhaps got the equation wrong from the problem too. So don't go to too much trouble, just wondered if I was missing something obvious!

Wow thank you Wilmer!
I was playing around with the idea of a quadratic... I was trying to complete a square or something but had not thought of that.
It makes perfect sense to remove the negative exponents by multiplying by k^2x all across.
I am really grateful for your answer!! Thank you so much!